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ABOUT 15,000 YEARS AGO, THAT REGION UNDER ICE A MI...
ABOUT 15,000 YEARS AGO, THAT REGION UNDER ICE A MILE DEEP
Unit 1: HOME LIFE
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156.
About 15,000 years ago, that region under ice a mile deep.
A, buried B. was burying C. was buried D. had buried
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156.
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Unit 1: HOME LIFE